Some of the best free-to-play iOS games incorporate movie licenses. Case in point, Jurassic Park Builder. The newest title, Ghostbusters, mixes in elements from the iconic 1984 film, with series’ heroes Peter, Ray, Egon, and Winston, along with the gross looking but loveable Slimer and secretary Janine Melnitz. Throw in that familiar theme music and entertaining gameplay, and there’s a lot to love about this surprisingly good iPhone and iPad title.

For starters, the game features an all-new story in the Ghostbusters mythology. Fans will immediately recognize villain Scott Dickinson, the hapless test subject that Peter Venkman shocks at the beginning of the movie. Armed with some sort of supernatural power (and a shadowy figure pulling the strings), Scott sets out to exact revenge. Meanwhile, there’s a ghost-ridden high rise in the center of New York City that’s apparently the source of evil.

That said, the primary goal is to ascend this tower one floor at a time. To do this, you must collect slime, achieved by taking jobs around the Big Apple to bust ghosts. You assemble a team of up to four Ghostbusters (including new recruits), supply them with the latest equipment, and then give those ghosts what for.

Combat involves tapping the desired character and then dragging a finger towards the enemy, whereupon which your Ghostbuster automatically opens fire with his or her particle accelerator. What’s especially interesting are the different types of heroes and their unique abilities. Wranglers, for example, have the shortest range but absorb the most damage. Blasters, meanwhile, deal the most punishment, and Scientists can heal teammates. Success heavily depends on how you micromanage everyone.

Once you complete a set number of jobs, you’re then able to reach the next floor of the aforementioned tower. Doing this is key, since the game grants access to a new batch of equipment, from stronger suits to more efficient weapons. Considering the ghosts become tougher the further you progress, it’s in your best interest to upgrade as much as possible.

Researching, though, takes considerable time, and you’ll need Power Cores (one of three virtual currencies) to speed up the process. Of course, the option to make in-app purchases for more is but a click away.

Quite frankly, Ghostbusters is one of the best movie games we’ve played for iPhone and iPad. Although it doesn’t necessarily push the freemium genre forward, the smartly implemented presentation and gameplay make it a guilty pleasure. Busting makes us feel good.